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<div class="w-100 mb-5">
  <h2>APM user guide</h2>
  <p>
    Learn how to use APM in the <a href="/guide/en/observability/current/apm.html">Observability guide</a>.
  </p>
  <div class="note admon">
    <div class="icon"></div>
      <div class="admon_content">
      <p>
        To view APM documentation for versions before 8.12, go to the <a href="/guide/en/apm/guide/index.html">APM guide</a> instead.
      </p>
    </div>
  </div>
</div>
<div class="w-100 mb-5">
  <h2>APM agents</h2>
  <ul>
    <li><a href="/guide/en/apm/agent/android/current/intro.html">Android Agent Reference</a></li>
    <li><a href="/guide/en/apm/agent/go/current/introduction.html">Go Agent Reference</a></li>
    <li><a href="/guide/en/apm/agent/swift/current/intro.html">iOS Agent Reference</a></li>
    <li><a href="/guide/en/apm/agent/java/current/intro.html">Java Agent Reference</a></li>
    <li><a href="/guide/en/apm/agent/dotnet/current/intro.html">.NET Agent Reference</a></li>
    <li><a href="/guide/en/apm/agent/nodejs/current/intro.html">Node.js Agent Reference</a></li>
    <li><a href="/guide/en/apm/agent/php/current/intro.html">PHP Agent Reference</a></li>
    <li><a href="/guide/en/apm/agent/python/current/getting-started.html">Python Agent Reference</a></li>
    <li><a href="/guide/en/apm/agent/ruby/current/introduction.html">Ruby Agent Reference</a></li>
    <li><a href="/guide/en/apm/agent/rum-js/current/intro.html">Real User Monitoring JavaScript Agent Reference</a></li>
  </ul>
</div>
<div class="w-100 mb-5">
  <h2>APM extensions</h2>
  <ul>
    <li><a href="/guide/en/apm/lambda/current/aws-lambda-arch.html">APM AWS Lambda extension</a></li>
    <li><a href="/guide/en/apm/attacher/current/apm-attacher.html">APM attacher</a></li>
  </ul>
</div>
